Interchangeable polishing brush



March 10, 1931. D. J. LEE 1,795,869

INTERCHANGEABLE POLISHING BRUSH Filed April 5. 1929 2 Sheets-Sheet lMarch 10, 1931. J LEE 1,795,869

INTERCHANGEABLE POLI SHING BRUSH Filed April 3. 1929 2 Sheets-Sheet 2 v22 v r n-n l rm 2;- 1 AV $1 312 Patented Mar. 10, 1931 artar [oFFicEDANEEL 3'. LEE, or nos AnenLnscAmroRmA EII IEBGHANGEABLE FQLISHING BRUSHapplication filed [11)111 a, 1929. serial-No. 352,192.

holder is adapted to receive and house a cas ingconstruction carrying arotary daubing brush for applying the polishingmaterial to the surfaceto be treated and in which after removal of the rotary daubing brush asecond casing may be inserted'havin'g a series of rotary polishingbrushes. A still further object of my invention is a interchangeablebrush construction in which a power drive is used in connection with asuitable holder and from this powerdrive I may operate rotary dauberbrush rotating on a vertical or in substitution thereof I may operatepolishing brushes rotating-onhorizontal axes.

A further detailed obiect of my invention is utilizing a housing iollowat the-bottom and having; an electric motor mounted. thereon with theshaft horizontal and this motor drivinc; a vertical shaft. Such shaft isadapted to lin with a vertical stub shaft on a casing containing eithera daubing; brush rotating on a vertical axis or a series of polishingbrushes rotating on horizontal axes.-

M invention is illustrated in the accordpanying drawings, in which,Figure 1 illustrates a side view of my brush when using the polishingbrushes v Fig. 2 is an underneath view taken in2the direction of thearrows 2; I

Fig. 3 is a longitudinal section taken substantially on the line 33 ofFig. 4:, in the direction of the arrows; v

Fig. 4 is a vertical transverse section on the line 4e-l of Fig. l inthe direction of the arrows;

Fig. 5 is a side elevation. of. the casingand brushes in the polishingbrush device;

Fig. 6 is a vertical transverse section of a casing a dauhing brush,showing the cou-v nections to the motor.

In the illustrations I show a small or. hand manipulated type i of brushsuitable for polishing shoes or relatively smallfarticles. This employsa holder 11 havingla hollow lower section 12 which is formed by the sidewalls13 and 14, 141- being considered a front wall and the end walls 15together-with the top 16. A handle 17 is connected 'to the top; and thehousing has an open bottom .18.

An electric motor l9 is mounted on'the flat top 16 the motor preferablyhaving a base 20 attached thereto, this motor being en closed in a cover21 of suitable sheet material. The motor in the small type of brush ispreferably inserted in the space formed by the handle 17 The motor isillustrated as having a shaft 22. operating a bevel gear 23 which bevelmeshes with a second bevel gear 24 on a vertical shaft-25. This lattershaft is mounted in asleeve 26 depending from the gear case 27,suchgear'case being. attached to the cover 21. The vertical shaft has aring 28 mounted thereon with an at .taching :pin 29 extendingthrough thering 28 and the shaft 25. The shaftpreferably has a. squared end 30. Itwill thus be seen v that the motor drive extends downwardly along themain housing of the brush and that it maybe controlled as to operationthrough the controlling of the motor.

A brush casing 31 is formed preferably with metal side walls32 and endwalls 33. These are shaped to approximately fit the interior of thehollow portion 1 2 of the. main. housing. This construction is shown ashaving three axles Shaving cores 35 with bristles 36 extending from thecores. The bristles form the polishing element of the brush. The coresare rigidly secured to the axles 34 and theseaxles havebearings inthe-front and back walls of the casing. i Y Each of the axles34 hasagear 37' mounted on a shaft and these gears each mesh with an idler gear38'mount'ed on the-pivots 39 on the inside of the side walls 32 of thebrushcas- Ill) ing. The brush housings have a gear case 40 securedthereto, this gear case having a first bevel gear 41 on the centralhorizontal axle. This meshes with a. bevel gear 42 on a vertical stubshaft 43; this latter shaft being journaled in a sleeve 44 extendingupwardly from the gear housing. This stub shaft has a socket 4L5 tocooperate with the squared end of the vertical shaft 25. The side of thecasing has an opening 46 which accommodates the gear case when the brushcontainer is thrust therein from the bottom. The squared end of theupper vertical shaft forms a snug fit with the socket in the stub shaftand hence a drive may be transmitted from the motor to the three rotarybrushes operating on a horizontal axis. The drive from the verticalshaft is to the center brush having the central gear thereon and thenceby the idler gear 38 the drive is carried to the end brushes, therebyall of the brushesrotate in the same direction. The casings are held inthe housing by means of springcatches 4E7 which have one end 47 attachedto the ends of the housing and have prongs 48 extendusing a dauberbrush. In this the removable casing is designated by the numeral 51;this has sides and ends with a bridging piece 52 at the bottom. Abracket 53 is secured to one of the side walls of this casing and inthis bracket and in the bridging piece 52 there is journaled a verticalshaft 54 and also in the bracket there is journaled a horizontalshaft55. These shafts have gears 56 and 57 meshing together. A gearhousing 58 on the outside of the sidewall of the casing has a journal 59for a vertical stub shaft 60, this stub shaft having a square socketsimilar to the construction of Fig. 4. Gears 61 and 62 on the shorthorizontal shaft and on the vertical stub shaft mesh.

daubing brush is removed from the handle housing and the polishing brushcasing is inserted therein.

It will be seen that the connection of the drive shaft from the motorwith the vertical stub shaft on either of the casings is a simplematter. If desired an electrical switch may be mounted eitheradjacentthe motor or the handle to control the motor Various changes maybe made in the prin This device is ciples of my invention withoutdeparting from the spirit thereof as set forth in the description,drawings and claims.

I claim 1. A brush comprising in combination a holder having an openbottomed housing connected thereto, a casing detachably mounted in saidhousing and insertable through the bottom, a brush mounted on ahorizontal axle in the casing, a stub shaft connected to the casing, ageared drive from the stub shaft to the axle, an electric motor on theholder and a detachable driving connection from the motor to the stubshaft.

2. A brush comprising in combination a holderhaving a housing open atthe bottom, an electric motor mounted on top of the holder and driving adrive shaft on the side of the housing, a casing insertable in thehousing and detachably connected thereto, a plurality of brushes onhorizontal axes in the casing, one brush being geared to another,-a stubshaft mounted on the casing and detach-ably connected to the said drivesaaft and a driving connection from said stub shaft to the brushes.

3. A brush comprising in combination a holder having depending sidewalls and an open bottom, an electric motor mounted on top of theholder, a vertical shaft extending downwardlyon one side of the holderforming a drive from the motor, a casing insertable in the holder fromthe bottom upwardly, means to latch the casing in the holder, the saidcasing having a vertical stub shaft with means to form a slip connectionwith the shaft on the holder, and a brush in the casing driven from saidstub shaft.

4. A brush comprisir in combination a holder having a top, side and endwalls, and

open at the bottom, with a vertical slot in one of the side walls, anelectric motor mounted on the top and having a horizontal shaft, avertical sleeve, a vertical shaft in the sleeve with a geared connectionbetween said shafts, a casing having side and end walls to removably fitin the holder and insertable through the open bottom, with a latchingmeans to latch the casing in the holder, a gear casing attached to thecasing and fitting in the said'slot, a stub shaft extending upwardlyfrom the gear casing and having a slip connection with the verticalshaft on the holder, a second shaft in the casing driven from the stubshaft, and a brush d iven from said second-shaft.

In testimony whereof I have signed my name to this specification.

DANIEL J. LEE.

